CAMEL-11930: deploy only if build from master
CAMEL-11930: deploy only if build from master

With multi branch pipeline Jenkins job, for every branch that is built
the results are automatically deployed to ASF Maven snapshot repository.
We should do this only for the `master` branch as it could lead to
incompatible versions of artefacts being present in the repository.

christophd/camel,jonmcewen/camel,tdiesler/camel,kevinearls/camel,dmvolod/camel,punkhorn/camel-upstream,onders86/camel,cunningt/camel,mcollovati/camel,zregvart/camel,objectiser/camel,nikhilvibhav/camel,tadayosi/camel,nikhilvibhav/camel,dmvolod/camel,dmvolod/camel,anoordover/camel,adessaigne/camel,alvinkwekel/camel,CodeSmell/camel,kevinearls/camel,alvinkwekel/camel,onders86/camel,zregvart/camel,sverkera/camel,DariusX/camel,jonmcewen/camel,objectiser/camel,alvinkwekel/camel,gnodet/camel,tdiesler/camel,tdiesler/camel,apache/camel,cunningt/camel,sverkera/camel,kevinearls/camel,objectiser/camel,anoordover/camel,Fabryprog/camel,Fabryprog/camel,gnodet/camel,cunningt/camel,akhettar/camel,pax95/camel,ullgren/camel,sverkera/camel,pmoerenhout/camel,pax95/camel,adessaigne/camel,cunningt/camel,CodeSmell/camel,pax95/camel,kevinearls/camel,cunningt/camel,pax95/camel,nicolaferraro/camel,dmvolod/camel,jonmcewen/camel,akhettar/camel,curso007/camel,anoordover/camel,nikhilvibhav/camel,adessaigne/camel,pax95/camel,akhettar/camel,davidkarlsen/camel,akhettar/camel,kevinearls/camel,pmoerenhout/camel,apache/camel,ullgren/camel,nicolaferraro/camel,pmoerenhout/camel,gnodet/camel,christophd/camel,davidkarlsen/camel,curso007/camel,tdiesler/camel,mcollovati/camel,tdiesler/camel,anoordover/camel,pmoerenhout/camel,akhettar/camel,DariusX/camel,gautric/camel,punkhorn/camel-upstream,tadayosi/camel,gautric/camel,davidkarlsen/camel,onders86/camel,jamesnetherton/camel,CodeSmell/camel,zregvart/camel,adessaigne/camel,tadayosi/camel,gautric/camel,gautric/camel,mcollovati/camel,adessaigne/camel,apache/camel,nikhilvibhav/camel,apache/camel,christophd/camel,christophd/camel,dmvolod/camel,sverkera/camel,sverkera/camel,pmoerenhout/camel,nicolaferraro/camel,jamesnetherton/camel,christophd/camel,alvinkwekel/camel,jamesnetherton/camel,tadayosi/camel,curso007/camel,apache/camel,curso007/camel,davidkarlsen/camel,jonmcewen/camel,curso007/camel,adessaigne/camel,jonmcewen/camel,anoordover/camel,punkhorn/camel-upstream,gnodet/camel,gautric/camel,DariusX/camel,jamesnetherton/camel,kevinearls/camel,zregvart/camel,pmoerenhout/camel,ullgren/camel,gnodet/camel,akhettar/camel,onders86/camel,mcollovati/camel,dmvolod/camel,cunningt/camel,sverkera/camel,jamesnetherton/camel,curso007/camel,onders86/camel,nicolaferraro/camel,objectiser/camel,anoordover/camel,jonmcewen/camel,pax95/camel,tadayosi/camel,DariusX/camel,gautric/camel,punkhorn/camel-upstream,christophd/camel,ullgren/camel,tdiesler/camel,onders86/camel,tadayosi/camel,jamesnetherton/camel,Fabryprog/camel,CodeSmell/camel,apache/camel,Fabryprog/camel